软件更新时使用

/**
* 安装apk
*/
public static final boolean installApk(Context context, String path) {
File f = new File(path);
if (!f.exists()) {
return false;
} else {
Intent it = new Intent(Intent.ACTION_VIEW);
it.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
it.setDataAndType(Uri.fromFile(f),"application/vnd.android.package-archive");
context.startActivity(it);
return true;
}


}